Asset Securitizations - Additional Information (Details) (Former Timeshare Segment, USD $) In Millions, unless otherwise specified	11 Months Ended	12 Months Ended
	Nov. 20, 2011	Dec. 31, 2010 transaction	Jan. 01, 2010 transaction	Dec. 30, 2009 days
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Number of days overdue at which notes are considered to be in default				150
Securitized notes receivable		$ 229	$ 446
New note securitization transactions		1	2
Trust notes issued by transaction-specific trust simultaneous with purchase of notes receivable		218	522
Net gains from the sales of timeshare notes receivable		0	37
Net proceeds from new timeshare note sales	122	215	349
Group 1
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Securitized notes receivable			284
Group 2
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Securitized notes receivable			380
Resecuritized reacquired notes receivable previously securitized in the previous note sale transaction			$ 218